baber/WOPTO huggingface dataset:
Patent GB-1534227-A (GB)
Title: Differential drive mechanism
IPC: F16H48/30
Filed: 1977-09-15
Abstract: 1534227 Differential gear control EATON CORP 15 Sept 1977 [22 Sept 1976] 38594/77 Heading F2D The rate of rotation of the crown wheel 34 of a vehicle differential is monitored by a sensor 200, a control 208 detects acceleration of the crown wheel greater than a predetermined value, an indication of wheel slip, to cause an actuator 210 to engage a lock-up positive clutch. The clutch comprises a sleeve 86 having teeth which engage teeth of a gear 88 and teeth 87 which engage teeth 82 of a differential side gear 54. The gear 88 is connected to the crown wheel 34 through a multi-disc friction coupling loaded by springs 102, the coupling slipping if excess torque is present. The sensor 200 may be photoelectric or electromagnetic. The actuator 210 may operate pneumatically, electrically or hydraulically. The control 208 may be fluidic or electronic. The differential may alternatively be an interaxle differential (Fig. 4, not shown). The clutch can be operated manually. The clutch may be held engaged by a time delay after engagement.
Patent GB-1313913-A (GB)
Title: Driving tool
IPC: B25B15/00
Filed: 1970-08-11
Abstract: 1313913 Non-magnetic fastener pick-up and driving tool GARDNER-DENVER CO 11 Aug 1970 [11 Aug 1969] 38735/70 Heading B3N A driving tool 10 having its driving end coated with a layer 20 of non-tacky elastomeric material so that a fastener engaged with the tool will remain engaged therewith by the resiliency of the coating. Surfaces 30 may have none, or a very thin, coating so that the tool will be able to freely engage a fastener. The material used as a coating is a polymer resin, preferably urethane, dissolved or suspended in a suitable solvent such as methyl ethyl ketone, xylene or polyglycol solvent or a mixture thereof. Other types of driving tools may utilize such a coating, e.g. single blade screwdrivers, socket heads, spline heads, hexagonal and square drive heads. The coating need only have a thickness in the order of 0À0005 to 0À005 inch. A coating is applied by loading bits 10 on to a suitable fixture, immersing or dipping them into a vat of coating material 40, allowing the material to air set and then curing the coating in an oven. The coating may be sprayed or moulded on the bits.
Patent GB-1287623-A (GB)
Title: Control means for vending machines
IPC: G07F5/22
Filed: 1969-09-04
Abstract: 1287623 Vending machine control circuit N WADDLETON (HR Electronics Co) 4 Sept 1969 38991/69 Heading G4V A vending machine control circuit comprises a counter 14, coin receiving means 12 applying pulses to the counter, and an AND gate 22 receiving inputs from the counter and coin receiving means and applying an output to a vend relay 26. The coin receiving means is adapted to receive 5 and 10 cent pieces, the 5 cent pieces operating a switch 16 and the 10 cent pieces operating switches 16 and 18. Operation of the switch 16 or 18 charges a capacitor to apply a pulse through an RC smoothing circuit to the counter, the capacitor preventing a false count due to switch bounce. The counter comprises a two stage bi-stable circuit, each stage including two oppositely connected transistors. The AND gate 22 and circuit 24 each include a voltage divider network.
Patent GB-1180949-A (GB)
Title: Improvements in or relating to Lead Screws.
Inventor: MCVEY GEORGE
IPC: F16H25/24
Filed: 1967-08-25
Abstract: 1,180,949. Screw-and-nut gearing; breaking pieces. DEXTER & CO. (HIGH WYCOMBE) Ltd. 21 Aug., 1968 [25 Aug., 1967], No. 39171/67. Headings F2Q and F2X. A lead-screw comprises a number of tubular sections 10 clamped end-to-end on a rod or tube 36 and having an external helical thread 12, each section having an end face 14 formed as a helix of the same pitch and hand as the helical thread. All sections except the end ones have both ends helical, the end sections 30, 38 having flat outer ends normal to the axis of rotation. The outer end 34 of section 30 is secured to the shaft 36, while a washer 42 is clamped against the outer end 40 of section 38 to hold all the sections together. In a modification (Fig. 5, not shown), an end section (52) is connected to a collar (60) rigid with the shaft by shear pins (58) or other coupling means which fails or slips on overload. The sections are hardened throughout, and each has an outer diameter of twice its bore diameter, and a length of between two and three times its bore. The thread and helical ends may be multi-start.
Patent GB-1352558-A (GB)
Title: Apparatus for making wire scribed circuit boards
IPC: H05K13/06
Filed: 1970-05-22
Abstract: 1352558 Making circuit boards KOLLMERGEN CORP 19 April 1971 39203/73 Divided out of 1352557 Heading B3A An electrical circuit board is made by adhering conductors to an insulating board. The board 11, Fig. 2 which may be of a reinforced ceramic, a thermoplastic or a thermosetting material and has a coating 12 of B-stage thermosetting adhesive, is located under the wiring apparatus of Fig. 2. To start the wiring process feed rollers 31, 32 move against insulated wire 20 from a supply to feed wire under the tacking head 24. Head 24 is then moved downwards and the heating coil 25 is energized sufficiently to soften the adhesive 12, mold it partly round the wire and initiate curing. Rollers 31, 32 are withdrawn from the wire and the board 11 is moved in X or Y direction by drive 18 so that wire is drawn from the supply and tacked periodically by head 24 along a desired line. When it is desired to turn through a right angle, the whole of the wiring apparatus is rotated through 90 degrees and the drive is energized in the other direction. At the end of a desired wire run, the wire is severed by decent of cutter 26. The wiring apparatus, which consists essentially of a number of concentric cylinders movable relative to one another by motors under computer control is described in detail with reference to Figs. 4-7 (not shown). In a modification, Fig. 8 (not shown), heating is by an ultrasonic transducer.
Patent GB-1486828-A (GB)
Title: Air vent unit for room ventilation
IPC: F24F13/072
Filed: 1974-09-09
Abstract: 1486828 Air vent unit for ventilation HESS & CIE 9 Sept 1974 [12 Sept 1973] 39206/74 Heading F4V An air vent unit (for supplying air to a room) has an exit cross-section at least part of which is between two air-directing surfaces 2a, 2b. Means 3 can change the orientation of the surfaces 2a, 2b at more than one rate. The means 3 is programmable by a programming device (not shown) so that the air-directing surfaces can be moved according to a programme including more than one rate of movement of the directing surfaces. As shown, the surfaces 2a, 2b are planar and are moved to and fro by an electric motor. The unit is arranged above a false ceiling 6. In a modification, the exit cross-section comprises two pairs of air-directing surfaces (2a, 2b and 2c, 2d), Fig. 2 (not shown). In a further embodiment, the exit cross-section is provided by a diametral slit (10a), Fig. 3 (not shown), through a rotatable cylinder 10, the sides of the slit providing air-directing surfaces. In another embodiment air-directing surfaces 13, 14, Fig. 4 (and Fig. 5, not shown) are pivoted in a box 1 at 15, 16 and are pivotable to different positions by a plate 21 which is movable as indicated at 22 so that the edges of slots 19, 20 act on cam pins 17, 18 for moving the surfaces. With all alternatives, different speeds of displacement of the airdirecting surfaces can be selected. When the supply air jet is very rapidly moved to and fro, the supply air remains at the ceiling. With only a slight cyclic variation of the supply air jet direction, the depth and range of penetration thereof are increased.
Patent GB-1433730-A (GB)
Title: Isomerizing and hydrocracking paraffins
IPC: C10G45/62
Filed: 1974-09-09
Abstract: 1433730 Isomerization - hydrocracking CHEVRON RESEARCH CO 9 Sept 1974 [10 Sept 1973] 39344/74 Heading C5E A process for producing a gasoline boiling range isoparaffin fraction and a propane-rich fraction from a low octane C 5 -C 6  paraffin feedstock comprises (a) catalytically isomerizing the feedstock to give an effluent comprising isoparaffins and n-paraffins, (b) feeding at least part of the effluent, without separating the iso- and n-paraffins, to a hydrocracking zone containing a shape selective hydrocracking catalyst comprising a hydrogenating component and a zeolite of pore size 4-6À5 Š thereby selectively hydrocracking the n-paraffins to give an effluent which is separated into the required isoparaffin fraction and propane-rich fraction. The isomerization may be carried out at 400-900‹ F. in the presence of added H 2  using as catalyst a Group VIII metal or metal compound on an acidic inorganic oxidic support, such as a zeolite or synthetic clay. The shape selective hydrocracking catalyst may comprise a Group VI or VIII metal, in elemental, oxide, sulphide or halide form and erionite, zeolite T, chabazite, gmelinite, stilbite, offretite, epistilbite, desmin and zeolites ZK4 and ZK5.
Patent GB-919305-A (GB)
Title: Improvements relating to speech amplifying system
Inventor: CASTELLAIN ALFRED POURTALES
IPC: H04R27/00
Filed: 1960-11-16
Abstract: 919,305. Public address systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 3, 1961 [Nov. 16, 1960], No. 39366/60. Class 40 (4). In a public address system for an auditorium a plurality of electrically interconnected microphones 6 are arranged in a vertical row, to give a polar diagram as indicated by lines 8, and are positioned in the acoustic shadow of at least two separate loud-speakers 7 energized by the amplified output of the microphones. The microphones can pick up both the comments from the principal speaker 3 and from the audience and the amplifier may be provided with automatic gain control to equalize the resulting outputs.
Patent GB-1131098-A (GB)
Title: Improvements in or relating to digital-to-analogue converters
IPC: H03M1/00
Filed: 1966-09-07
Abstract: 1,131,098. Selective signalling. SIEMENS A.G. 7 Sept., 1966 [8 Sept., 1965], No. 39965/66. Heading G4H. In a digital-to-analogue converter with a Gray code input, the successive bits of the input are assigned weights 1,3,7,15 ... (2-<SP>n</SP>1), the most significant 1-bit is assigned a positive sign, and the succeeding 1-bits are assigned alternate signs. For example, an input of 1101 ( = 9 in Gray code) is decoded as 15 - 7+1. A relay switching circuit with appropriately weighted resistors and positive and negative supply voltages is described, but electronic switches could be used.
Patent GB-1029686-A (GB)
Title: Electroless nickel plating
IPC: C23C18/34
Filed: 1964-10-01
Abstract: In a method of electroless Ni plating by gaseous reduction of a buffered aqueous Ni salt bath having a pH above 2, the temperature of the bath is increased as the Ni ion concentration decreases during coating.  A Ni workpiece is placed in an autoclave containing a bath of NiCl2, NH4OH, NH4Cl and anthraquinone.  The bath is purged with nitrogen at 400 p.s.i. heated at 2.8 DEG F., pressurized to 600 p.s.i. by bubbling hydrogen through the bath for 36 minutes, allowed to cool and depressurized.  Alumina, brass, berryllium, nickel, iron, silicon diodes and P.T.F.E. may be coated using baths containing additionally Ni acetate, sulphate, sulphamate fluoborate and borate and one or more buffers e.g. ammonium borate, iodide, sulphate; K, Ni and ammonium acetate and acetic acid; carbon monoxide may be the reducing gas.  Preferred pressures and temperatures are 150-800 p.s.i. and 200 DEG -370 DEG F., the pH should not be above 7 in acetate baths nor above 9 in ammonia baths.  Plating is discontinued when either the gas is stopped, the bath exhausted of Ni ions or the acidity becomes too great.  As shown the plating is carried out in a steel autoclave 10 having a P.T.F.E. liner 18, a stirrer 20 and a temperature measuring device in well 26. Hydrogen and nitrogen are introduced through pipe 28, the pressure controlled by exhaust valve 32. <PICT:1029686/C6-C7/1>
Patent GB-1191005-A (GB)
Title: Improvements in or relating to Vacuum-Packed Fried Food Products
IPC: A23L13/00
Filed: 1967-09-01
Abstract: 1,191,005. Meat products. RENE FOODS Inc. 1 Sept., 1967 [14 Sept., 1966], No. 40079/67. Headings A2B, A2D and A2E. A process of preparing a meat product such as chicken, veal cutlet, fish, sea food and shrimp, for cooking by frying, boiling, broiling or baking, involves sealing the exposed surfaces to the passage of moisture by gelling thereon an edible high polymer which forms a gel stable at the pH of the meat and under the cooking conditions. The moisture content of the meat product may first be adjusted if necessary, e.g. to 20%, by parboiling in a pressure cooker in the presence of water or blanching with wet steam. The following gelling high polymers are mentioned: (i) agar, algin, and carrageenin, fucoidan and laminasan gums; (ii) gum arabic, ghatti gum, karaza gum and gum tragacanth; (iii) a mixture of 80% agar and 20% gum arabic; and (iv) carboxymethyl cellulose. Aqueous solutions containing 1% by weight of the gelling high polymer are applied to the meat product by spraying or dipping. (It is stated that guar gum, locust bean gum, pectin and li gum are not sufficiently stable to be used alone as the sealing agents.) Typically, treated chicken is dipped in a batter made from whole egg, flour and seasoning, is breaded with spiced bread crumbs and is then fried while held between a pair of travelling belts immersed in heated cottonseed or corn oil. The fried product is canned or vacuum packed and heat sterilized.
Patent GB-1303894-A (GB)
IPC: C01G23/07
Filed: 1970-08-20
Abstract: 1303894 Vapour phase production of TiO 2  MONTECATINI EDISON SpA and NEWJERSEY ZINC CO 20 Aug 1970 [20 Aug 1969] 40198/70 Heading C1N A reactor for producing TiO 2  comprises a cylindrical reaction zone and a coaxial downwardly divergent zone located above the reaction zone, O 2  being fed in at the top, and TiCl 4  being fed radially through an annular slot at or below the bottom of the divergent zone. Preferably the divergent zone is frustoconical, has a height 0.5-10 times the diameter (D) of the cylindrical zone, and forms an angle of 5-30 degrees with the axis. The annular slot may have a width <SP>1</SP>/ 10 -<SP>1</SP>/ 100  D and be inclined at 45-90 degrees to the axis. It should not be more than 4D below the bottom of the divergent zone. The O 2  is preferably introduced with a swirling motion, and may be preheated to 1800-2300 C. by burning excess O 2  with CO. The TiCl 4  may be preheated to 400-600 C. and may contain AlCl 3  or TiCl 3  as utilizing agents. The product has a particle size of 0À18-0À25 Á.
Patent GB-1191276-A (GB)
Title: Solenoids for use in Engine Starting Mechanisms
Inventor: BIRD EDMUND JOHN
IPC: H01H51/06
Filed: 1966-09-09
Abstract: 1,191,276. Electromagnetic switches. JOSEPH LUCAS (INDUSTRIES) Ltd. 22 Aug., 1967 [9 Sept., 1966], No. 40311/66. Heading H1N. A plunger armature type electromagnetic relay has its plunger armature 13 biased by a spring 19 acting between a part of the fixed relay structure and an extension attachedto the plunger at 17 and having extending axially parallel arms 15, 16 for the spring seating. A lever (not shown) is engaged between a spring- biased plate 31 and the end of a hole 18a in a plunger extension 18 and controls the pinion of an engine starting coupling.
Patent GB-1481768-A (GB)
Title: Heart beat detector
IPC: A61B5/276
Filed: 1975-10-03
Abstract: 1481768 Heart beat detector YEDA RESEARCH & DEVELOPMENT CO Ltd 3 Oct 1975 [4 Oct 1974] 40470/75 Heading G1N(E) In a heart beat detector which signals the occurrence of heart beats by light signals 1, interelectrode impedance sensing means 2 are provided for automatically ascertaining and indicating whether  adequate conductivity exists between the body of the patient and the input electrodes applied to the body. When the impedance between the electrodes is high, indicating bad contact, the light indicator (several L.E.D.'s) is supplied with a 15-60 cycle signal, which causes the L.E.D.'s to appear to be permanently on. A test circuit 3 is also provided which when activated causes test signals to pass over the input electrodes and through the E.C.G. signal processing circuit to cause the L.E.D.'s to flash. Changes in test flashing may indicate first battery exhaustion, then a circuit or electrode failure. Further details of the circuits are described (Figs. 2-5 not shown).
Patent GB-1293341-A (GB)
Title: Spray guns
Inventor: WILLIAMS GRAHAM LLEWELLYN
IPC: B05B7/14
Filed: 1968-08-23
Abstract: 1293341 Spray guns POWER-SPRAYS Ltd 20 Oct 1969 [23 Aug 1968] 40488/68 Heading B2F A gun for spraying heavy or aggregate materials e.g. stone and cement paints, resin bonded aggregates and cementitious mixes comprises a gun body 11 and a spray head 2 which is releasably securable to both the gun body and the material supply e.g. hopper 1, the head being securable to the body at more than one angular position relative thereto. The spray head contains three passages, a first 27, communicating with a spray aperture, a second cooperating with the supply means 1 and a third containing a fluid tube 22 from the gun body. The aperture may be formed in a plate 4 slidably mounted in lateral grooves in front of the first passage 27 or it may be in a quadrant plate itself being pivotally mounted in front of the passage 27; each plate contains more than one aperture. A cylindrical portion 31 of the spray head (which may be ribbed or grooved) may cooperate with a bore (which may be grooved or ribbed) in the gun body to provide the adjustable mounting. A trigger 10 is provided to urge the fluid tube, which is resiliently urged against the selected aperture, away from the aperture to effect spraying. The tube 22 has a brass tip portion 8. The material may be supplied from either a hopper 1 or from a source under pressure.
Patent GB-1294216-A (GB)
Title: Hydraulic tensioning device for continuous welded rail
Inventor: MARTYN PETER HENRY
IPC: E01B29/20
Filed: 1970-08-25
Abstract: 1294216 Tensioning rods PERMANENT WAY EQUIPMENT CO Ltd 5 Aug 1971 [25 Aug 1970] 40743/70 Heading F2G [Also in Division E1] A device for tensioning rails and holding them in tension, while welding up the rail ends in continuous welded railway track, includes two hydraulic rams 3, 4 pivotally connected between two pairs-of clamping heads 9, 10, 13, 14. The clamping heads are releasably coupled together by pivoted links 15, 16 or by member (21, Figs. 3 and 4, not shown). On pulling the outer ends of heads 9 and 13, 10 and 14 together, jaws 19 grip the webs of the rails 2, which are stretched to close the gap 20 for welding. Heads 9, 10, 13 and 14 are of cast manganese steel and jaws 19, which are pivotally mounted in the heads, optionally with rubber centring means (23), are of forged steel. With the heads reversed and rods 10 and 11 replaced by push bars (29, Figs. 7 and 8, not shown) the rails can be pushed apart to widen the gap 20.
Patent GB-1134807-A (GB)
Title: Control mechanism for a cable
Inventor: HILLYER ANTHONY WILLIAM
IPC: B62M25/04
Filed: 1966-09-13
Abstract: 1,134,807. Control cable mechanisms. RALEIGH INDUSTRIES Ltd. 1 Sept., 1967 [13 Sept., 1966; 2 Feb., 1967], Nos. 40766/66 and 5065/67. Heading B7E. A cycle gear change or other cable control mechanism such as a lever 11 displacing a control cable W pivots on a support plate 10 and is coaxial with a pivotal plate 12. The lever and plate 12 are connected by a spring 13 which allows the lever to move over the plate 10 should the control cable be prevented from moving. In Figs. 3-5 (not shown), an extra pivoted gear-change lever 31 is provided and co-operates with protuberances or recesses in the back plate.
Patent GB-1419515-A (GB)
Title: Shoe-drum brakes incorporating automatic adjusters
IPC: F16D51/14
Filed: 1972-09-02
Abstract: 1419515 Internal shoe drum brakes; wear adjusters GIRLING Ltd 30 Aug 1973 [2 Sept 1972] 40793/72 Heading F2E An automatic adjuster for the shoes of an internal shoe drum brake, which shoes are adapted to be separated at their ends by one or more actuators, comprises an assembly 16-19, Fig. 2, of adjustable length associated with one end of a shoe 2, Fig. 1, and incorporating a rotatable member (or sleeve ) 18, Figs. 2, 5, which is in screw-threaded engagement with a non-rotatable member 17 and has on a radially-protruding end face a ring of ratchet teeth co-operating with an annular pawl 23, Figs. 2, 3, resiliently urged into engagement with the ratchet teeth and movable angularly by a lever 26, Fig. 1, pivoted on the assembly and connected by a spring 37 (or like resilient means) to a relatively stationary part 6, the arrangement being such that on brake application the assembly moves outward with the shoe end and the lever is moved about its pivot to rotate the pawl relative to the ratchet teeth, and if the movement of the assembly exceeds a predetermined value (e.g. owing to wear of the shoe lining), the pawl is caused to ride over one or more of the ratchet teeth and on release of the brake the spring returns the lever to actuate the pawl 23, which moves the rotatable member 18 angularly in a direction to increase the effective length of the assembly 16-19. As shown, the adjuster assembly is located between a pin 12 secured to shoe webs 13, 14, and a tappet 7 of an hydraulic actuator 6 so that housing 15 and threaded spindle 17 are non- rotatable. The pawl 23 has two or three teeth (not shown) co-operating with thirty-six teeth on sleeve 18. Lever 26 is pivoted on pin 27 on housing 15 and connected at one side of the pivot by an inextensible tie 33, Fig. 1, to a bolt 34 on hydraulic actuator 6; the lever is connected at the other side of the pivot by the above-mentioned spring 37 to the actuator 6. Thus, in operation, when tappet 7 engaging tongue 16 on housing 15 forces shoe 2 outwards, lever 26 is forced by tie 33 to rotate clockwise, and in its turn rotates pawl 23; if the pawl rotation (because of shoe lining wear) is greater than the spacing between two ratchet teeth, each pawl tooth will ride over a ratchet tooth, and on brake release pawl 23, acted on by spring 37, will rotate sleeve 18 to increase the effective length of the assembly. A tool may be inserted between a fixed member 45, Fig. 2, and a tongue 43 on a blade spring 25, Fig. 3, to force spring 25, and with it pawl 23, to the left away from the end teeth on sleeve 18, whereupon the sleeve may be re-set by engaging further external teeth 46 on the sleeve. Reference has been directed by the Comptroller to Specification 1,294,101.
Patent GB-1047027-A (GB)
Title: Improvements relating to the treatment of aromatic extracts
Inventor: DEMEESTER JACQUES
IPC: C10G45/08
Filed: 1963-10-18
Abstract: A process for improving the colour of aromatic extracts from lubricating oil feedstocks comprises contacting the extract at elevated temperature and pressure and in the presence of hydrogen with a catalyst consising essentially of oxides of cobalt, molybdenum and iron on a refractory metal oxide support, for example alumina. The temperature is preferably in the range 250-320 DEG  C. and the pressure is preferably within the range 5-80 atmospheres.  The preferred hydrogen feed rate is within the range 5-150 volumes per volume of oil and the feed stock space velocity is preferably within the range 0.5-6 volumes per volume per hour.